The DHT-S218 delivers a 2.1-channel audio output through a multi-driver configuration consisting of two 3.5-inch, two 3-inch, and two 1-inch speakers, covering a broad range of frequencies across the soundstage. Wireless audio streaming is supported via Bluetooth with aptX, which enables higher-quality playback from compatible source devices; however, aptX Adaptive and AAC codec support are not included in this model.
The DHT-S218 supports Dolby Atmos, Dolby Digital Plus, and Dolby Digital, giving it solid compatibility with a range of widely used audio formats, while DTS:X is not supported. It connects to televisions via HDMI eARC, enabling high-quality audio signal transfer from compatible displays. On the smart feature side, the unit does not include Spotify Connect, Chromecast, AirPlay, or NFC Bluetooth pairing, and it is not compatible with Google Assistant, Amazon Alexa, or Siri and Apple HomeKit.
The DHT-S218 offers a focused wired connectivity setup, featuring a single HDMI output port, an AUX input, and an S/PDIF output for flexible source and display connections, while there are no RJ45 ethernet ports or microphone inputs. Bluetooth is built in for wireless audio streaming, though Wi-Fi is not supported, meaning the unit relies solely on Bluetooth for any wireless connectivity.
The DHT-S218 measures 890 mm wide, 67 mm tall, and 120 mm thick, with a total volume of 7,155.6 cm³ and a weight of 3,600 g, making it a slim but substantial unit. It can be operated via an on-device control panel, a standard remote control, or a dedicated smartphone app, though the remote is not rechargeable. Voice commands are not supported and the unit has no microphones, so all interaction is handled through physical or app-based controls.